MALICIOUS
68
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file was flagged by a machine learning classifier as malicious with a high confidence score. Static analysis identified an embedded script payload within a PDF stream, which is a common technique for delivering secondary malware. The embedded artifact 'embedded_file_obj0011.bin' is likely the payload. The exact nature of the script's execution is not fully detailed due to obfuscation, but its presence strongly suggests a download and execution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_file_obj0011.bin3a84744bf92c8f74397214185a580902c206b5ffb312009b2384277331a7a42c |
pdf-embedded-file | PDF EmbeddedFile object 11 at offset 0x9B0 | 18536 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 long base64-like blob(s).
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